Over the weekend, my friend and I explored the abandoned St. Luke's hospital in Cleveland. The hospital has seven floors, three wings and two basements (but we were too scared to make it down there to the morgue). We did make it up to the clock tower and had a great view of Cleveland, and found an intact theater/auditorium.
The building has been destroyed by metal scrappers over the last decade or so, and I think it's going to be torn down completely pretty soon because there's a new medical center next door and a bunch of brand new houses across the street. The whole building is boarded up all around the ground floor, and the upper floors are taken over by mold and have standing water in the hallways.
There are a bunch more photos on my Flickr